First step is the laying out of layer #1 - brown material. What can you access?
Examples are dried leaves, shredded paper, chafing and wood chips. Spread out evenly.
Once layer one is in place, a 200 square foot area will handle 500 - 700 litres of green - wet grass or food waste as a layer # two. You can add this layer anytime, right away or weeks after your first one.
Layer # three is an opportunity for a courser layer such as straw, fine twigs, root balls, or simple brown will work. This layer should by applied right away as rodents, squirrels, racoons may decide to make layer # two, their dinner.
Again, spread about 3 square yards of brown material evenly. Another brown I recycle is the cotton in futon bags. It unravels evenly and provides an excellent sandwich layer that absorbs oder and caps the top - It's ineffective at keeping scavengers out if your green smells like lunch, grass, fruits and veggies are usually no problem.